baber/WOPTO huggingface dataset:
Patent GB-1483442-A (GB)
Title: Computing machine including a directly addressable memory arrangement
IPC: G06F9/355
Filed: 1975-10-09
Abstract: 1483442 Memory addressing STANDARD TELEPHONES & CABLES Ltd 9 Oct 1975  41431/75 Heading G4C The memory of a data processing system is divided into blocks associated with respective types of information and each containing not more than the number of locations addressable by the processor over direct address lines, there being switching means arranged in response to stored block select signals derived from an instruction to connect the direct address lines to the appropriate blocks in the appropriate sequence during execution of the instruction in a number of following processor cycles. It is assumed that no instruction requires more than five cycles for execution. In such a case during the first cycle the program block of memory is addressed by setting the output of shift register S/R to 1. The next instruction is then accessed and part of it used to address a programmed read only memory which supplies a four bit word to shift register S/R. The bits in the shift register are shifted out in successive cycles so as to apply the address signals fed over the direct address lines by the processor to the appropriate memory blocks in the appropriate sequence, a 1 selecting the program block and a 0 the data block. For instruction requiring less than the maximum number of cycles the relevant bit from the PROM may be l's to direct the address to the program block to allow the next instruction to be accessed or alternatively "don't care" bits in which case a reset signal is generated when an instruction is completed to load the shift register with l's for the same purpose. A second embodiment is exactly similar except that four memory blocks and two PROMs and shift registers are provided to produce a series of 2-bit groups to select among the four memory blocks.
Patent GB-912141-A (GB)
Title: Improvements in and relating to quick release catches for rotary drive couplings
Inventor: RAMSHAW JACK
IPC: A47J43/08
Filed: 1959-12-07
Abstract: 912,141. Domestic mixers. KENWOOD MANUFACTURING (WOKING) Ltd. Oct. 24, 1960 [Dec. 7, 1959], No. 41557/59. Class 86. [Also in Group XXIV] In a food mixer the shaft 12 of an auxiliary appliance is retained in engagement with the power take-off shaft 10 by a plunger 1 carried by a pivot pin 3 on a lever 4 biased by a spring 7 to hold the plunger within the groove 14; disengagement of the two shafts being effected by pulling the lever against the bias of the spring and thus withdrawing the plunger.
Patent GB-1429810-A (GB)
Title: Process for producing diorganopolysiloxane polymers
IPC: C08G77/06
Filed: 1973-09-05
Abstract: 1429810 Polymerizing cyclic siloxanes GENERAL ELECTRIC CO 5 Sept 1973 [12 Oct 1972] 41714/73 Heading C3T A polydiorganosiloxane of viscosity 1000- 200,000,000 cP/25 C. is obtained by (a) mixing (1) a cyclic polysiloxane [R 2 SiO] n , optionally with (2) a cyclic polysiloxane [R<SP>1</SP>SiO] n , and (3) 1-90 p.b.w. per 100 of (1) of a linear polydiorganosiloxane of viscosity 10<SP>4</SP>-2 Î 10<SP>8</SP> cP/25 C., each R representing an alkyl, alkenyl or cycloalkyl radical of up to 8 C atoms, each R<SP>1</SP> representing a mononuclear aryl, alkaryl, aralkyl or alkenyl radical of up to 15 C atoms, each n being 3, 4 or 5, and the organo groups in (3) being alkyl, cycloalkyl, aleknyl or mononuclear or binuclear aryl, alkaryl or aralkyl radicals, but not more than 50 mole per cent aromatic and not more than 50 mol. per cent alkenyl, 1-50 mole per cent of the total organo groups in (1), (2) and (3) being aromatic, (b) heating the mixture to 110-175 C. to remove moisture, (c) adding up to 50 p.p.m. of alkali metal hydroxide and (d) equilibrating the mixture at 140-200 C. until the desired product is obtained. In Examples 1 and 2 95 p.b.w. of [Me 2 SiO] 4  and 5 p.b.w. of Me 3 SiO-terminated polydimethylsiloxane of viscosity 5 x 10<SP>7</SP> or 6 x 10<SP>6</SP> cP/25 C. are mixed with 15 or 43 p.b.w. of [Ph 2 SiO] 4 , the latter with 3 p.b.w. of vinyl heptamethyl cyclotrisiloxane, and, as chain stopper, 500 p.p.m. of hexamethyl disiloxane or 1000 p.p.m. of decamethyl tetrasiloxane; the mixture is heated at 150 C. with or without N 2  purge to remove a cyclosiloxane/waterazeotrope; the dried mixture is heated with KOH for 6 hrs. at 150-160 C., neutralized with acetic acid, and devolatilized; the products are polyvimethylsiloxanes of 5 or 6 Î 10<SP>7</SP> cP/25 C., containing 5À3% Ph 2 SiO units or 14% Ph 2 SiO and 0À6% MeViSiO units. The product may be mixed with 40 at per cent SiO 2 , 6 wt. per cent MeO(Me 2 SiO) 7 Me and 2 wt. per cent benzoyl peroxide and cured to a rubber.
Patent GB-948107-A (GB)
Title: Spade drill blade
IPC: B23B51/00
Filed: 1961-11-22
Abstract: 948,107. Drills. ERICKSON TOOL CO. Nov. 22, 1961 [Aug. 21, 1961], No. 41798/61 Heading B3C. A spade drill bit 11 has a zig-zag cutting edge 12 formed by portions 12a of high-speed steel, and portions 12b-12d on tungsten carbide inserts 34. The bit is held in a bar 2 by a screw 16, cutting fluid is supplied to the cutting edges through apertures 7-9, and grooves 10, and the cuttings pass along flutes 19. Specification 908,839 is referred to.
Patent GB-1471248-A (GB)
Title: Nitrofuryl compounds process for the preparation and compo sitions containing these compounds
IPC: C07F9/54
Filed: 1975-10-13
Abstract: 1471248 Nitrofuryl derivatives and pharmaceutical compositions containing them BYK GULDEN LOMBERG CHEMISCHE FABRIK GmbH 13 Oct 1975 [15 Oct 1974] 41846/75 Headings C2C and C2P The invention comprises compounds of formula wherein R<SP>1</SP> represents a (C 1-6 ) alkyl group and R<SP>2</SP> represents H, Cl, Br, -OH, -SO 2 , -NH 2  or a C 1-4  alkyl group. These compounds may be prepared by reacting 3-(5-nitro-2-furyl)- acrylaldehyde of formula with an aromatic carboxylic acid hydrazide of formula wherein R<SP>1</SP> and R<SP>2</SP> are as defined above. The following intermediates are prepared in the examples: o-Toluoyl hydrazide by the reaction of otoluoylic acid with hydrazine hydrate. 3 - (5 - Nitro - 2 - furyl) - acrylaldehyde by the reaction of 5-nitro-2-furylaldehyde with acetaldehyde. Ethyl o-bromomethyl-benzoate by esterifying o-bromomethyl-benzoic acid with ethanol in the presence of thionyl chloride and dimethyl formamide. (o - Ethoxycarbonylbenzyl) - triphenylphosphonium bromide by treating the afore -mentioned ester with triphenyl phosphine. Ethyl - o - (1 - butenyl) - benzoate by reacting the above phosphonium salt with butyl lithium in n-heptane. o-n-Butyl benzhydrazide by reducing the above ester with hydrogen in the presence of Pd/ carbon catalyst. The invention also comprises a pharmaceutical composition which contains as an active ingredient a compound according to the invention in association with a pharmaceutical carrier.
Patent GB-938766-A (GB)
Title: Transparent polyethylene film
IPC: C08J7/12
Filed: 1961-11-22
Abstract: A polyethylene film up to 50 mils. thick is caused to imbibe a liquid having a swelling action on polyethylene at the imbibition temperature, immersed in a solution of an organic compound capable of generating free radicals at the melting point of the polyethylene, cured at from 10 DEG C. below to 100 DEG C. above its melting point in the absence of oxygen, stretched at 10 DEG C. below the melting point or higher, the temperature used and the duration of heating being such that the polyethylene does not suffer substantial thermal degradation, especially at a temperature within \sB10 DEG C. of the melting point, and cooled to form a transparent, shrinkable film. Specified swelling agents include benzene, cyclohexane and carbon tetrachloride, and organic peroxides, especially benzoyl peroxide, and dicumyl peroxide, and t-butyl peracetate and t-butyl perbenzoate may be used as free-radical generating compounds, suitably in an amount of 0,2-10% based on the weight of the polyethylene.  A film may be simultaneously swollen and caused to take up the free radical-generating compound by immersion in a solution of the latter in the swelling agent at a temperature at which the polyethylene is swollen thereby.  Alternatively the film may be first caused to imbibe the swelling agent at a temperature of 40 DEG C. or above (e.g. polyethylene of density 0,92 may be caused to imbibe benzene at 50 DEG -70 DEG C.), and then immersed in a solution of the free-radical generating compound at about room temperature.  Prior to c curing the swelling agent may if desired be removed by evaporation, and stretching of both tubular and flat films may be effected by blowing.  A flat film may be clamped between two horizontal plates, the top plate having a cut-out circular portion in its centre, and the bottom plate a corresponding recess.  The whole is immersed in a liquid held at a suitable temperature, in a closed pressure system, and air introduced into the recess to stretch the film.  Shrinkage of the stretched film may be effected by heating it to a temperature not lower than 25 DEG C. below the melting point of the polyethylene. Specification 471,590 and U.S.A.  Specification 2,816,883 are referred to.
Patent GB-1119099-A (GB)
Title: Improvements in reinforcement spacers for moulding operations
IPC: E04C5/16
Filed: 1966-09-23
Abstract: 1,119,099. Concrete reinforcement spacer. A. BRENNA. 23 Sept., 1966 [24 Sept., 1965], No. 42500/66. Heading E1W. A spacer for the support of reinforcing rods or bars in the moulding of concrete e.g. vertical walls, comprises a plate 5 secured at respective corners thereof more closely to one end of legs or posts 1, 2, 3, 4 and, in addition, one pair of opposing sides 6, 7 of the plate 5 is of greater length than the other and the sides 6, 7, 8, 9 are preferably inwardly curved so that different sizes of reinforcement may be supported using either of the sides or the curved edges of the plate 5; a hole 10 is provided through the plate 5 for nailing to a wooden mould.
Patent GB-1291514-A (GB)
Title: Method of measuring low-intensity luminous flux
Inventor: BRICARD JEAN
IPC: H01J43/30
Filed: 1970-09-07
Abstract: 1291514 Photo-electric detection COMMISSARIAT A L'ENERGY ATOMIQUE 7 Sept 1970 [17 Sept 1969] 42709/70 Heading G1A [Also in Division G4] A method of measuring low intensity light with a photo-multiplier, against a noise background, the light being produced by distinct events, comprises the following steps: (a) counting the number of photo-electron pulses in a short time interval at the start of a measuring interval; (b) comparing the count obtained in (a) with a predetermined value. If the count is greater than the predetermined value the measurement cycle is proceeded with, otherwise step (a) is repeated. This eliminates spurious counts between events; (c) counting the number of pulses for a period less than the duration of an event; (d) waiting for a period such that the total measurement cycle is greater than the duration of an event, and then repeating the measurement cycle; (e) obtaining an output when the recorded count at (c) is greater than some fixed value, or displaying the counts obtained over a number of measuring cycles on a multi-channel analyser. The method may be used for determining particle size in an aerosol by measuring the intensity of scattered light.
Patent GB-1530586-A (GB)
Title: High pressure valves
IPC: F16K41/12
Filed: 1975-10-17
Abstract: 1530586 Valves; seals DRESSER INDUSTRIES Inc 17 Oct 1975 [23 Dec 1974] 42755/75 Headings F2B and F2V A valve has a closure member 20 operated by a stem 36 which is isolated from a flow passage 12 by a stack of metal layers 46, 48 forming a diaphragm 30 with some layers being of different composition from others of the stack, there being means 56, 58 for supporting the diaphragm in the valve body. Preferably alternate layers of the diaphragm are of nickel chrome alloy and titanium alloy with modulic of elasticity of 30 x 10<6> and 16 x 10<6> p.s.i. respectively the former of 0À008-0À012 and the latter of 0À010 to 0À15 inch thick; the support including a resilient base 58 of treated graphite and a flexible flange 60. A similar flange (62) Fig. 9 (not shown) extends from a head 32 bearing against the diaphragm at the spindle end. At least the upper diaphragm layer may be slotted radially (50) Fig. 12 (not shown). To improve fluid flow around the closure the valve body is provided with apertures (78, 80), Fig. 2 (not shown) forming relief porting, this forming the subject matter of Specification 1,530,587.
Patent GB-1165728-A (GB)
Title: Fined Grained Steel and process for preparation thereof
IPC: C21D8/00
Filed: 1966-09-26
Abstract: 1,165,728. Improving physical properties. UNITED STATES ATOMIC ENERGY COMMISSION. 26 Sept., 1966 [15 Oct., 1965], No. 42818/66. Heading B3V. [Also in Division C7] Steel containing nickel together with chromium and/or molybdenum in sufficient amount to combine with all the carbon present, and having a martensite start temperature substantially below room temperature, is austenitized and is then worked to give a reduction in thickness of at least 25%, preferably about 80%, in the temperature range 400 C. to 600 C. at which a high-density dislocation network with slip bands is formed. The steel is then subjected to a cyclic quenching and tempering process, the quenching being carried out at progressively lower sub-zero temperatures.
Patent GB-1018910-A (GB)
Title: Key-operated electric switch, particularly for keyboards
IPC: B41J5/16
Filed: 1963-10-30
Abstract: 1,018,910. Retractive switches. OLYMPIA WERKE A.G. Oct. 30, 1963 [Nov. 7, 1962], No. 42840/63. Heading H2B. A push-button operated switch for use in electric typewriters, for example, comprises an insulating body 1 of U-shape having lugs 2 which pass through slots in a mounting plate (not shown) and are retained by a wire spring clip 14 engaging slots 2<SP>1</SP> as shown. The clip 14 also passes through a slot 6<SP>11</SP> in a reciprocable member 6, thus resiliently limiting the travel thereof in each direction. Member 6 carries a button 15 and a contact spring 11 in the shape of an inverted W which bridges two fixed contacts 9 when the button is depressed.. A spring 8 provides retraction. The contact 11 straddles an insulating moulding 10 on member 6 and is normally held against shoulders 10<SP>1</SP> by a pin 12. The lugs 2 are arranged obliquely to the body 1 so that a plurality of switches may be mounted in close proximity without interference between the clips 14 (Fig. 4, not shown). The mounting plate may be stepped to carry switches in rows at different levels, or it may be inclined (as indicated by broken lines in Fig. 2, not shown), in which case the top of body 1 is made to slope correspondingly.
Patent GB-905146-A (GB)
Title: Process for the production of sodium acetyl salicylate and of double salts of sodiumacetyl salicylate with sodium bicarbonate
IPC: A61K31/60
Filed: 1960-12-14
Abstract: Sodium acetyl salicylate and its double salts with sodium bicarbonate are prepared by reacting sodium carbonate and/or sodium bicarbonate with acetylsalicylic acid in the solid state, at a temperature below that at which substantial saponification of acetylsalicylic acid occurs, the reaction being effected in the presence of such a quantity of water as is sufficient to moisten the reaction mixture whereby to initiate reaction but permits the product to separate out in solid form at the end of the reaction. Specification 15517/02 and German Specifications 218,467, 270,326, 276,288 and 286,691 are referred to.
Patent GB-1504250-A (GB)
Title: Addition of wire to a metal melt
IPC: C21C7/00
Filed: 1976-10-19
Abstract: 1504250 Feeding wire into molten metal HOESCH WERKE AG 19 Oct 1976 [5 Dec 1975] 43328/76 Heading C7D Wire 11 may be fed from a stationary coil 1, 1', on a reel or spool located on a spindle 6, 6' through a straightening device 7 over a fixed pulley and through a set of drive rollers 2 into a guide tube 3 and thence into a bath of molten metal 4. Continuous feeding may be obtained by joining the trailing end 111 of coil 1 on spindle 6 to the leading end 111' of coil 1' on spindle 6'. The use of the stationary coil permits of uniform delivery of the wire to the melt without the problems arising due to the rotation of the coil. The Example of adding Al ore to a steel melt is shown.
Patent GB-1236139-A (GB)
Title: Anti-seize lubricating composition
Inventor: BERGERON KATHARINE SONNTAG
IPC: C10M169/00
Filed: 1969-09-03
Abstract: 1,236,139. Anti-seize grease. K. S BERGERON. 3 Sept., 1969 [6 Jan., 1969], No. 43629/69. Heading C5F. An anti-seize grease comprises by weight: at least 2% fish oil-based lead soap, at least 0À5% sulphur modified sperm oil, 5-90% Cu metal and a base lubricant in amount at least 4% and sufficient to make 100% total. Optional components are powdered lead and amorphous graphite each in amount 5-30% by wt. The base lubricant may be a mineral or synthetic oil, such as polybutyne, polyisobutene or dioctyladipate, containing Al, Ba, Li, Na or complex Ca soaps or lampblack or clay. The sperm oil may be sulphurized or sulphonated. The mineral oil base may contain brightstocks.
Patent GB-1116091-A (GB)
Title: Process for vulcanising unsaturated ethylene-ª-olefine rubber
IPC: C08K5/17
Filed: 1965-10-15
Abstract: Unsaturated ethylene/a  - olefin copolymer rubbers are vulcanized with 0.5 to 5.0% of a thiuram or dithiocarbamate accelerator, 0.25 to 3.5% of sulphur and 0.15 to 5.0% of an amine of formula NR1R2R3, where R1 is an alkyl, hydroxyalkyl, alkoxy or alkenyloxy radical or a composite radical consisting of two or more of these, R2 is hydrogen or cycloalkyl and R3 is hydrogen or an alkyl, hydroxyalkyl, alkyloxy, alkenyloxy or aminoalkyl radical; all based on the weight of rubber. The rubber may be a copolymer of ethylene, propylene and a plurally unsaturated compound such as dicyclopentadiene, hexadiene-1,4, decatriene-1,4,9, cyclooctadiene-1,5 or norbornene.  Specified accelerators are tetramethylthiuram mono- and disulphides, zinc diethyl- and dibutyl dithiocarbamates and N-cyclohexylethyl ammonium N-cyclohexylethyl dithiocarbamate.  Specified amines are cyclohexylamine, 1-aminopropanol-2, 1 - aminopropanol - 3, n - butylamine, stearylamine, laurylamine, di - 3 - aminopropyl ether, 3 - lauryloxypropylamine, 3 - allyloxy - 2 - hydroxypropylamine, 1, N,N - diethylamino-propylamine, N,N1 - diethylene diamine, [di-(2 - oxypropyl)] - ethanolamine, N - (n - butyl) diethanolamine and cyclohexylethylamine. Examples describe the vulcanization of compositions comprising ethylene / propylene / dicyclopentadiene copolymer rubbers, stearic acid, zinc oxide, carbon black, naphthenic plasticizer oil, tetramethyl thiuram disulphide, mercaptobenzothiazole, sulphur and a selection of the above specified amines.
Patent GB-1005513-A (GB)
Title: Strippable packages for sutures
IPC: B65D75/58
Filed: 1963-11-08
Abstract: 1,005,513. Strippable suture packages. L. D. KURTZ. Nov. 8, 1963, No. 44108/63. Heading B8C. The weld between inner layers 6, 8 of opposed sheets 7, 14 of a suture package is so strong that, when the package is torn open, the tear runs through the material 8 and along the bond between the materials 8 and 14. The material 6, 8 may be polyethylene of different thicknesses, the layer 7 may be a polyester, and the layer 14 may be aluminium. The package may form the inner or outer container for a sterile surgical suture. The inner container may include a protective liquid, and the suture may be coiled within a sheath.
Patent GB-1457940-A (GB)
Title: Thermally relaxing thermoplastic films
IPC: B29D7/01
Filed: 1974-10-14
Abstract: 1457940 Thermally relaxing films IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Sept 1975 [14 Oct 1974] 44390/74 Heading B5B An oriented, heat-set film of a 1-olefine having from 2 to 8 carbon atoms in its molecule is subjected to a relaxing step such that the residual relaxation (as defined) is no greater than 150 units. The relaxation is brought about by contacting the film with the heated surface of a rotating roller to heat it to a temperature between the glass transition temperature and the melting temperature of the polymer and subjecting the heated film to a longitudinal tension of at most 18 Kg per metre width of the film for a period of from 0À1 to 60 seconds. The longitudinal tension is preferably maintained by controlling the speed at which the film is fed to and withdrawn from the heated roller. The process is exemplified for a film of a propylene homopolymer.
Patent GB-1398543-A (GB)
Title: Web winding and holding apparatus
IPC: G11B23/02
Filed: 1972-09-27
Abstract: 1398543 Winding webs LANIER ELECTRONIC LABORATORY Inc 27 Sept 1972 [29 Oct 1971] 44619/72 Heading B8R An apparatus for winding a tape from a cassette 15 comprises a hub 35 for receiving a length of the tape drawn from the cassette and having a flange 38, the other end of the hub being unrestricted to allow the tape wound on a sleeve 36 to be withdrawn by axial sliding along the hub. As described a length of the tape is withdrawn from the cassette 15 by placing it in a drive housing on a drive shaft 20 to enable traverse of the tape within the cassette, removing a short portion of the tape from the cassette by, e.g. a pencil through slots 18, 32 and cutting it before applying to the sleeve 36. The tape is then wound on to the sleeve by actuating a motor 21.
Patent GB-1384931-A (GB)
Title: Method and apparatus for determining pressures in and the thrust of a jet engine
IPC: F02K3/00
Filed: 1972-09-28
Abstract: 1384931 Measuring jet engine thrust  CONTROL DATA CANADA Ltd 28 Sept 1972 [29 Oct 1971] 44755/72 Heading G1N Apparatus for use in determining the gross thrust of a jet engine comprises a pressure transducer 11 arranged to determine the total pressure PTS in the diffuser and to provide a first signal representative thereof; a pressure transducer is  arranged to determine the static pressure PSN at the entrance to the nozzle and to provide a second signal representative thereof and a computer 4 combining these signals to provide a third signal representing PTN the total pressure at the nozzle entrance. The computer selects one of two equations represented by blocks 42, 43 depending on whether an after-burner is operational or not in order to compute the third signal, which equations combine said first and second signals with constants determined empirically by plotting (P T5 -P TN /P TN ) against (P SN /P T5 ) with the after-burner operational or non-operational. The computed third signal is applied to circuit block 23 which determines αe the ratio (P TN /P SO ) where where P SO  is ambient static pressure and which is signalled by the flight instrumentation 15. If αe is less than (γ+1/2) <SP>γ/γ-1</SP> where γ is the ratio of specific heats of the exhaust gas this indicates that expansion of the exhaust gases in the nozzle is complete, that is the exhaust gas has been expanded to ambient static pressure, at the nozzle exit and the equation represented by circuit block 26 is selected for the computation of aerodynamic gross thrust FG which equation includes the function fc (αe), Fig. 3 (not shown) appropriate to a complete expansion nozzle. On the other hand if αe is greater than (γ+1/2) <SP>γ/γ-1</SP> the equation of current block 28, including the function f I  (αe) appropriate to an incomplete expansion nozzle, is selected for computation of F G . In an alternative embodiment Fig. 4 (not shown) a further pressure transducer 12 is provided determining the static pressure P 56  in the flame-holder and providing a signal representative thereof to a block (22) which provides a signal representing P TN , according to a more exact equation which signal is fed to block 23 as before.
Patent GB-1101878-A (GB)
Title: Bellows
Inventor: WORBY DONALD
IPC: F02M1/00
Filed: 1965-10-22
Abstract: 1,101,878. Seals. BRYCE BERGER Ltd. 16 Nov., 1966 [22 Oct., 1965], No. 44763/65. Heading F2B. [Also in Division B5] A tubular sealing bellows, having thick end portions and an intermediate thinner portion, is made by moulding a bellows of uniform wall thickness along its length, stretching the bellows on to a mandrel, machining the intermediate portion of the bellows to the desired thickness and finally removing the bellows from the mandrel and allowing it to resume its old shape.